Beijing Silk Road Enterprise Management Services Co.,LTD
                                                                                                           
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18 Years
Since 2008
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HUATO HE400A-EX Digital Temperature Humidity Transmitter with External Sensor 4-20mA Output ±0.5℃ Accuracy

Price Negotiable
Price: negotiable
MOQ: negotiable
Delivery Time: 7-15 working days
Brand: HUATO
Product Description
Industrial Digital Temperature & Humidity Transmitter
HE400A-EX is a professional-grade temperature and humidity transmitter developed by HUATO, featuring high-performance sensors and industrial SCM design for reliable operation in demanding environments.
Key Features
  • External sensor with 3-meter cable for flexible placement
  • Industrial SCM design with low power consumption
  • Multiple output options: 4~20mA, 0~5V, 0~10V, RS485, Modbus
  • Large LCD display (60×40mm) showing both temperature and humidity
  • Compact dimensions: 100×100×30mm
  • Easy installation and maintenance
  • CE and ISO certified
Technical Specifications
Parameter Specification
Temperature Accuracy ±0.5℃
Humidity Accuracy ±3%RH
Temperature Range -30~70℃ (HE400A-EX model)
Humidity Range 0~100%RH
Resolution 0.1℃ / 0.1%RH
Power Supply 9V~30V DC
Net Weight 280g
Available Models
HE400 series includes multiple variants with internal or external sensors, supporting various output signals including 4~20mA, 0~5V, 0~10V, RS485, and Modbus protocols.
Product Images
HE400A-EX Temperature Humidity Transmitter front view HE400A-EX side view showing mounting options HE400A-EX rear panel with terminal connections HE400A-EX LCD display showing temperature and humidity readings HE400A-EX external sensor with 3-meter cable
Applications
  • Pharmaceutical facilities and clean rooms
  • HVAC and ventilation duct monitoring
  • Industrial and civil sector environmental control
  • High-density farms and greenhouse monitoring
  • Public spaces: canteens, auditoriums, gyms
Designed for precise environmental monitoring and control applications where reliable temperature and humidity data is critical for operational efficiency and compliance.

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